Traction device for vehicle wheels



y 1935- R. WOOLGAR TRACTION DEVICE FOR vEHICLE WHEELS Filed Sept. 27. 1934 I Patented July 9, 1935 r a UNITED STATES PATENT OFFICE 7 2,007,843 TRACTION DEVICE FOR VEHICLE WHEELS Robert Wolgar, Manhattan, Kans.

Application September 27, 1934, Serial No. 745,782

3 Claims. (01. 152-44) The invention relates to traction devices paran enlarged intermediate section ll providing ticularly adapted for use with pneumatic tires as shoulders l8 engaging the side edges of the plates used on motor vehicle wheels and has for its I2 and servingto space said plates from one anprincipal object the provision of a traction inother as best shown in Figure 3. l9 designates creasing means that will not only increase the U-shaped yokes having their ends provided with 5 tra'ctiveforce of the wheel in going forward or loops 29 to receive the extended ends of the bars backward, but will also hold the wheel and preiii, 2i indicating nuts mounted on the ends of said vent side slipping. I bars which may be threaded to receive the nuts, A further objectof the invention is the provior any other suitable means for assembling the 10 sion of a traction device for the purpose stated bars IS with the loops may be substituted. 10

that has no objectionable prongs to cut into the Yokes l9 are also provided with other spaced surface of roadways, such devices now being proloops 22, 6 2 designates Wsheped attaching hibited in a number of municipalities, and that members having terminal hooks 24 on the ends depends upon flat metal protuberances, preferof their arms engaging in the loops 22, said atably rectangular in shape, and having abrupt taching members 23 also having loops 25 at their 5 edges that will engage ice on the roadway to inapexes to receive a rod or bolt 26 to secure the crease traction of the wheels and also prevent side device on the wheel as shown in Figures 1 and 2.

slipping. 2i designates a nut mounted on thethreaded end A further object of the invention is the pro-- 28 of said rod or bolt to releasably hold the memvision of a device of the character stated that may her in position on the wheel as stated. 20 be readily mounted on the vehicle wheel and re- In Figure 4 is shown a slightly modified conmoved therefrom without necessitating jacking struction in which there is prov ded a Single up the wheel in either operation. plate .iil having a transverse groove 3| forming The invention will be described in detail herethe bearing fec that are lectallgulai, p inafter and will be found illustrated inthe acerably, as herein f ribed in relation to 25 companying drawing, in which the other form. The faces of the members 32 are Figure 1 is a transverse sectional view of a Shewn CIOSS hatched by means of grooves 3 wheel rim and tire showing one of my improved ranged in substantially right angles to each other, traction devices mounted thereon, and this face may be applied to the faces of the 30 Figure 2 is a fragmentary side view in elevation members 14 hereinbefore described, or the faces 30 of the part shown in Figure l, of the members 32 may be plain as are shown the Figure 3 is a plan view of one of the traction faces l4. devices in extended position, and Brackets 33 are pivotally mounted on the ends Figure4 is amodified construction of the device. of the plate 30 y means f pin 34 n agin in 35 In the drawing similar reference characters IOODS a havespaced 100135 35 to receive t e 35 are used to designate corresponding parts in all h oks of a p mounting member of the views. and said mounting members are provided with In Figures 1 and 2 a traction device is, as stated, loops 39 for mounting the device on the tire in the shown in position on a tire and rim, the tire being same manner as that hereinbefore described in designated Ill, andthe rim ll. As shown in Figconnection with Figures 1, 2, and 3. 40 'ures 1, 2, and 3, the traction device comprises a What is claimed is:- pair of substantially parallel plates l2 having 1. Atraction device for vehicle wheels, compristransverse grooves I3 therein, forming therebeg a tread member, Yokes pivotally Co nected to tween substantially rectangular bearing members Opposite ends of said tread member, said Y s M, the edges of said bearing members being being each provided with spaced loops, V-shape'd 45 Habrupt, as shown, so that when in engagement attaching members having terminal hooks enwith a slippery road, icecovered, or otherwise, the a n in Said 1. the p of each of aid. atabrupt edges of the members l4 will prevent slipee ng members provided With p, d a bolt ping in any direction, and in addition to increasmounting e ad be 0 a vehicle wheel ing the traction of the wheel on which it is mountand tire and enga in the loops in the attached either in going forward or backward, will preing members. vent side skidding. 2. A traction device for vehicle wheels, come The opposite ends of the plates l2 are provided prising tread plates, a spacing bar provided with with transverse openings l5, and It indicates bars reduced bearing terminals mounting Said p that are mounted in the openings l5 and having yokes pivotally engaging the terminals of said bar,

said yokes being each provided with spaced loops, posite ends of said plate, said yokes being each v-shaped attaching members having terminal hooks engaging in said loops, said attaching members being each provided with a loop, and a bolt 5 mounting said tread plates on a Wheel and tire and engaging in the loops in the attaching members.

3. A traction device for vehicle tires, comprising a tread plate, yokes pivotally mounted on opprovided with spaced loops, V-shaped attaching members having terminal hooks to engage in said spaced loops, the apex of each of said attaching members provided with a loop, and means engaging in the loops in the attaching members to hold the plates on the tread of a wheel tire.

ROBERT WOOLGAR. 

